Furnace regulator



Jan. 1,;1929. 1,697,089

s. J. RILEY FURNACE REGULATOR Filed July 30, 1927 Patented Jan. 1, 1929.

warren mama) eater oFFicE.

SAMUEL J'. RILEY, F YOUNGSTOWN, OHIO.

FURNACE REGULATOR.

Application filed July 30,

the draft. In so far as applicant is aware,

however, such constructions have heretofore either been of such nature as to necessitate special provision for their accommodation during the design of the original furnace, or such as to involve difliculty in assembly with respect to the furnace and the available room present.

In the accompanying drawings there is shown more or less diagrammatically and for purposes of illustration only, a preferred embodiment of the present invention, it being understood that the drawings do not define the limits of my invention as changes in the construction and arrangement disclosed therein may be made without departing either from the spirit of the invention or the scope of my broader claim.

In the drawings:

Figure 1 is a side elevational View of a furnace having my improved regulator in position thereon; and

Figure 2 is a detail sectional view on an enlarged scale, and partly broken away, illustrating the construction of the control mechanism.

In carrying out the present invention, there may be secured to one side of a suitable furnace 2, a bracket 3 having projecting therefrom a bearing 4 adapted to provide a pivotal mounting for a control lever 5. The bracket 8 is preferably secured to the furnace adjacent the upper portion thereof to vpermit the longer arm of the lever 5 to overlie the furnace in such manner as to normally extend substantially parallel therewith in a position in which it is protected from accidental movement or deformation.

The bracket, as clearly shown in Figure 2, comprises a body portion formed with an opening in which is secured. one end of a tubular member 6 preferably of metal, of such composition as to have a relatively high coeiiicient of expansion. The furnace wall is drilled to accommodate the relative expansible member 6, a similar opening 7 1927. Serial No. 209,436.

being formed in the furnace wall on sub-' stantially a diametrically opposite side of the furnace. lhe free end of the relatively expansible member 6 projects through the opening '1' any desired extent, depending upon the relative length of the tube 6 and the diameter of the furnace, or the exact position or angle which the tube assumes relatively to a true diameter of the furnace.

The tube 6 on this free end carries a second bracket 8 internally threaded to cooperate with an adjusting screw 9 having an adjusting wheel 10 on its outer end. It will be understood that the wheel 10 may comprise an ordinary hand wheel, or that it may be provided with a groove 11 adapted to cooperate with a cable'or other form of con trol, not shown, enabling adjustment thereof from a. distance. Mounted "within the 7 tube 6 is a relatively non-expansible member 12 abutting at one end against the screw 9 and at the opopsite end against a thrust block 13 engaging the control lever 5. By reason of this construction it will be apparent that by turning the adjusting screw 9 in such direction as to move the relatively non-expansible member 12 to the left, as viewed in the drawings, the pressure transmitted to the lever 5 will be increased, while by moving the adjusting screw in the op posite direction, the reverse condition will obtain. In this manner the exact temperature at which the parts become effective for moving the control lever may be regulated at will.

The control lever is preferably provided on its outer end with a roller 14 adapted to cooperate with a flexible actuating member 15,- one end of which is secured to a projection 16 on the bracket 8, and the other end of which is attached to a damper 17. The flexible actuating member may also pass around suitable supporting pulleys 18300 a check valve 19, the connection being such that as the damper is opened to increase the draft, the check valve is closed for the same purpose.

lhe construction described lends itself to installation with existing furnaces since the control lever and the heat responsive elements may assume any desired position with respect to a true diameter of the furnace, the parts having such a length as to effectively operatein'the manner intended when positioned to extend in line with the diameter of the furnace. Due to the fact that the bracket 8 lSeDOteSQCUl'Gd to the :furnace but is free to float, any other: arrangenientof the parts necessary to accommodate varying.

features of construction, or to utilize in the most advantageous manner the rooin available, may be made.

Certain advantages of the presentinvention arise from the simpliclty of. the con-- struction provided; from the shape of the control lever whereby it; isadaptedto over- =-l1e-a.furnace andi xtend throughout the mayor portlonof. its'length, at least,.1n sub- -.stant1al\iparallehsin to the heatasresponslve eelements, and,fromit-heiuse of ameehanism end thereof secured to said bracket and of such length as to extend through a portion .of the furnace in the horizontal plane of the bracket, a second bracket secured to said tubular memberat its other end eXteriorly and independently of the furnace, a rela tlvely non-expansihle member Within said tubular member, adjusting r cans carried by said second bracket and engaging said relatively non-expansible member. a thrust block engaged by said relatively non-expansible requiring: attachment at one point only to; a

furnace and adapted to extendsthrougha furnace shell andprojeet from opposite sides thereof.

Still otheri advantages arise from the provision of a regulating @niechanism, such that different arrangements. thereof relative to a member adjacent its opposite end, an L- shaped lever having a substantially vertically extending arm pirotally connected to said first bracket for engagement by said thrust block and having a substantially horizontally extending arm overlying the furnace and terminating above and sub :furnace; maybe. made as irequirednbyi the stantially inthe vertical plane of the second bracket and a flexible actuatin member securedtationelendto said second bracket and engagedby the free end of said second mentioned arm for maintaining. such free end during. movement thereof in desired relation to the second bracket.

In testimony whereof I have hereunto set v my hand.

SAMUEL J RILEY- 

